The scooter that Jessica Dworkin was riding when she was struck by a tractor-trailer.

A 58-year-old Manhattan woman died Monday when she was trapped under the rear wheels of a tractor-trailer truck while riding a foot-propelled scooter, police said.

The woman, identified by an official as Jessica Dworkin, was attempting to cross 6th Avenue along Houston Street at about 9 a.m. when she became caught in the wheels of the truck, which was making a right turn onto 6th Avenue.

The truck driver, apparently unaware that he had collided with Dworkin, continued driving two blocks north until he was alerted by a witness, police said. He stopped at Minetta Lane and remained at the scene.

Police said the driver had not acted criminally and no charges were expected to be filed.